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2024-04-27 - 12:15

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #a, slot #5

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rackaslot5s.osadl.org (updated Sat Apr 27, 2024 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811610,0rcu_preempt4110-21if_eth019:19:460
811560,0rcu_preempt3-21ksoftirqd/019:44:380
811530,0rcu_preempt3-21ksoftirqd/019:34:570
811510,0rcu_preempt19-21ksoftirqd/119:40:031
811340,0rcu_preempt3-21ksoftirqd/000:28:540
811340,0rcu_preempt19-21ksoftirqd/119:34:521
811190,0rcu_preempt3-21ksoftirqd/022:38:540
811190,0rcu_preempt19-21ksoftirqd/123:39:521
811190,0rcu_preempt19-21ksoftirqd/122:24:431
811180,0rcu_preempt19-21ksoftirqd/122:39:521
811120,0rcu_preempt3-21ksoftirqd/019:24:570
811120,0rcu_preempt3-21ksoftirqd/019:24:570
811090,0rcu_preempt3-21ksoftirqd/021:23:080
811080,0rcu_preempt3-21ksoftirqd/022:49:580
811080,0rcu_preempt19-21ksoftirqd/121:50:001
811070,0rcu_preempt3-21ksoftirqd/023:19:590
811070,0rcu_preempt3-21ksoftirqd/023:19:590
811070,0rcu_preempt3-21ksoftirqd/021:34:540
811060,0rcu_preempt19-21ksoftirqd/100:04:531
811050,0rcu_preempt3-21ksoftirqd/022:44:530
811050,0rcu_preempt19-21ksoftirqd/123:09:591
811040,0rcu_preempt54-21kswapd023:16:391
811030,0rcu_preempt19-21ksoftirqd/123:24:571
811030,0rcu_preempt19-21ksoftirqd/120:39:531
811020,0rcu_preempt19-21ksoftirqd/123:29:521
811020,0rcu_preempt19-21ksoftirqd/122:04:561
811010,0rcu_preempt3-21ksoftirqd/021:59:360
811010,0rcu_preempt19-21ksoftirqd/123:54:241
811000,0rcu_preempt3-21ksoftirqd/022:09:560
811000,0rcu_preempt3-21ksoftirqd/000:04:340
81990,0rcu_preempt19-21ksoftirqd/123:54:241
81970,0rcu_preempt3-21ksoftirqd/000:14:530
81970,0rcu_preempt27610-21ps21:29:530
81960,0rcu_preempt19-21ksoftirqd/122:15:531
81960,0rcu_preempt19-21ksoftirqd/121:29:431
81950,0rcu_preempt3-21ksoftirqd/022:19:560
81950,0rcu_preempt19-21ksoftirqd/121:44:551
81940,0rcu_preempt3-21ksoftirqd/021:44:380
81940,0rcu_preempt3-21ksoftirqd/019:29:390
81940,0rcu_preempt19-21ksoftirqd/123:44:521
81940,0rcu_preempt19-21ksoftirqd/121:54:341
81940,0rcu_preempt19-21ksoftirqd/119:19:251
81930,0rcu_preempt3-21ksoftirqd/023:14:490
81930,0rcu_preempt19-21ksoftirqd/122:09:551
81920,0rcu_preempt19-21ksoftirqd/100:34:371
81900,0rcu_preempt26522-21kworker/0:221:57:110
81900,0rcu_preempt19-21ksoftirqd/121:22:471
81900,0rcu_preempt19-21ksoftirqd/100:25:111
81890,0rcu_preempt54-21kswapd021:26:511
81890,0rcu_preempt19-21ksoftirqd/100:29:371
81890,0rcu_preempt19-21ksoftirqd/100:29:371
81880,0rcu_preempt3-21ksoftirqd/020:19:430
81880,0rcu_preempt19-21ksoftirqd/122:34:541
81870,0rcu_preempt19-21ksoftirqd/119:19:261
81860,0rcu_preempt3-21ksoftirqd/020:09:560
81850,0rcu_preempt19-21ksoftirqd/123:34:361
81850,0rcu_preempt19-21ksoftirqd/122:59:551
81850,0rcu_preempt19-21ksoftirqd/120:04:411
81840,0rcu_preempt3-21ksoftirqd/023:49:530
81830,0rcu_preempt3-21ksoftirqd/021:09:460
81830,0rcu_preempt19-21ksoftirqd/123:20:001
81830,0rcu_preempt19-21ksoftirqd/123:20:001
81830,0rcu_preempt13602-21kworker/1:200:09:351
81820,0rcu_preempt19-21ksoftirqd/122:49:241
81810,0rcu_preempt19-21ksoftirqd/100:19:241
81800,0rcu_preempt19-21ksoftirqd/122:49:571
81800,0rcu_preempt19-21ksoftirqd/120:54:541
81800,0rcu_preempt0-21swapper/000:30:490
81800,0rcu_preempt0-21swapper/000:30:490
81790,0rcu_preempt3-21ksoftirqd/022:04:570
81790,0rcu_preempt3-21ksoftirqd/020:39:460
81790,0rcu_preempt3-21ksoftirqd/019:09:500
81780,0rcu_preempt3-21ksoftirqd/019:59:370
81780,0rcu_preempt19-21ksoftirqd/121:14:341
81780,0rcu_preempt19-21ksoftirqd/121:14:341
81780,0rcu_preempt19-21ksoftirqd/120:29:511
81780,0rcu_preempt19-21ksoftirqd/120:09:551
81770,0rcu_preempt3-21ksoftirqd/023:09:490
81770,0rcu_preempt3-21ksoftirqd/020:44:570
81770,0rcu_preempt3-21ksoftirqd/020:29:400
81770,0rcu_preempt3-21ksoftirqd/019:19:240
81770,0rcu_preempt19-21ksoftirqd/121:39:231
81770,0rcu_preempt19-21ksoftirqd/121:13:461
81760,0rcu_preempt3-21ksoftirqd/023:44:410
81760,0rcu_preempt3-21ksoftirqd/023:34:540
81760,0rcu_preempt3-21ksoftirqd/023:04:070
81760,0rcu_preempt19-21ksoftirqd/119:09:241
81750,0rcu_preempt3-21ksoftirqd/022:24:490
81750,0rcu_preempt19-21ksoftirqd/121:59:431
81740,0rcu_preempt3-21ksoftirqd/023:59:400
81740,0rcu_preempt19-21ksoftirqd/123:59:271
81740,0rcu_preempt19-21ksoftirqd/122:54:371
81740,0rcu_preempt19-21ksoftirqd/122:24:231
81740,0rcu_preempt19-21ksoftirqd/121:41:111
81730,0rcu_preempt3-21ksoftirqd/023:27:470
81730,0rcu_preempt3-21ksoftirqd/023:08:100
81730,0rcu_preempt3-21ksoftirqd/022:41:100
81730,0rcu_preempt3-21ksoftirqd/019:54:380
81730,0rcu_preempt19-21ksoftirqd/100:19:491
81720,0rcu_preempt3-21ksoftirqd/021:24:260
81720,0rcu_preempt3-21ksoftirqd/000:38:520
81710,0rcu_preempt3-21ksoftirqd/023:29:490
81710,0rcu_preempt3-21ksoftirqd/021:39:550
81710,0rcu_preempt3-21ksoftirqd/000:19:560
81710,0rcu_preempt3-21ksoftirqd/000:11:240
81700,0rcu_preempt3-21ksoftirqd/020:59:340
81690,0rcu_preempt3-21ksoftirqd/021:18:490
81690,0rcu_preempt3-21ksoftirqd/021:18:490
81670,0rcu_preempt3-21ksoftirqd/019:49:460
81670,0rcu_preempt19-21ksoftirqd/122:34:241
81660,0rcu_preempt3-21ksoftirqd/023:57:290
81660,0rcu_preempt3-21ksoftirqd/022:58:360
81660,0rcu_preempt3-21ksoftirqd/021:50:080
81660,0rcu_preempt3-21ksoftirqd/020:34:240
81660,0rcu_preempt19-21ksoftirqd/120:24:241
81660,0rcu_preempt18202-21kworker/0:220:06:400
81660,0rcu_preempt15428-21php-cgi19:54:421
81650,0rcu_preempt3-21ksoftirqd/022:29:560
81640,0rcu_preempt3-21ksoftirqd/023:40:580
81640,0rcu_preempt3-21ksoftirqd/022:18:550
81640,0rcu_preempt19-21ksoftirqd/120:34:241
81640,0rcu_preempt19-21ksoftirqd/119:32:031
81630,0rcu_preempt3548-21ping19:41:290
81630,0rcu_preempt19-21ksoftirqd/119:49:341
81620,0rcu_preempt19-21ksoftirqd/120:49:251
81620,0rcu_preempt19-21ksoftirqd/120:24:411
81610,0rcu_preempt3-21ksoftirqd/020:24:480
81600,0rcu_preempt3-21ksoftirqd/020:49:530
81590,0rcu_preempt3-21ksoftirqd/020:14:470
81590,0rcu_preempt3-21ksoftirqd/020:14:470
81590,0rcu_preempt19-21ksoftirqd/120:19:241
81590,0rcu_preempt19-21ksoftirqd/120:19:241
81580,0rcu_preempt19-21ksoftirqd/123:07:421
81580,0rcu_preempt19-21ksoftirqd/121:04:481
81580,0rcu_preempt19-21ksoftirqd/119:59:541
81540,0rcu_preempt19-21ksoftirqd/119:09:531
81520,0rcu_preempt3-21ksoftirqd/020:54:500
81510,0rcu_preempt19-21ksoftirqd/119:44:581
81500,0rcu_preempt19-21ksoftirqd/120:59:251
81500,0rcu_preempt19-21ksoftirqd/120:44:461
81470,0rcu_preempt31168-21apt-get19:04:340
81460,0rcu_preempt3-21ksoftirqd/021:04:410
81460,0rcu_preempt19-21ksoftirqd/119:24:371
81460,0rcu_preempt19-21ksoftirqd/119:24:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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